Electric fan.



H. L. ZABRISKIB I F. DIEHL.

ELECTRIC FAN.

- APPLICATION FILED 313.27, 1913. lp l 5S if? Pate/D138@ OCE. 27, 1914.

2 SHEBTS-SHEET l.

mmm

H. L. vZABRISKIE F. DIEEL.

ELECTRIU FAN.

APPLICATION PIL ED TEB 27, 1913.

mama not. 27, 19m.

2 SHEETS-SHEET 22 INVENTOR.'

fi/LLM /fd/W WTNESSES biting-hype which ehe u.. "ii i 4 Je.

To el!) whe/1.1L meg.' conce/m eiiinew and nsef'ie ,monroe/ement in trio l? uns, of muesli ime followmg 1s. e.. lull,

Clear? and. eleeeiiption. ,l

'This inve-ntie iele'tesjto electric and more Dereelsifly mens of the oseil- A motor body with fen oludes 21ml faro guercl piv'otelly moiiiiteal 'upon :1.l eeotioneiy base., medie to oseillfie slowly by 'means of reducing geef-ing. actuated by the emi/lenire shaft. This ges-.fing nieumeclI upon the maior body and ee 1g ilirouggli link coimeeiiion with. ilie stationary bose., imprints en oseilla'toiy motion to ille 'giv'otelly mountefl parte.

in feos the oscillating' type ie been custenmiy te mount 'loe gearing which pero (luces the osoillaetory effect in a` sepaiae cesiug upon alie outside of the. motor casing, ilus making the fen to e certain extent Lnb siglitly in. appearance; und es the appearance of 4elle feo is of importeme, one of Jelle objects of this-invention is to momie the oseillaling gearing upon elle motor vboy so that it'wiil not cause en unsightly prelaubereiice emi will not destroy the general contour oi elle fe.' l

@ne portion of our invention, designed o meet these contingencies, consists in s self-'contained gezuing ieamf'e .characterized by 'the geef trein being housed in a. oompmtmenl; arranged and, concealedy Within the motor easing., mid deiving'motion 'om. the

armature' simil'. oy connection therewith :il: e poini; loomed between elle motoi bearings.

As fans of his type are "so vw 'itious Conditions oil use :wel are likely o have ilieii oscillatory mmfemeniY obsruetec'i,

. it is necessei'y to, pi'ovide some form of safety device to prevent stripping of the operating gearing o1'- stallmg of the armeture and the burning out of the motor wind ings; and to .this end the im'eutiony comprises e safety clutch interposed ,in the eseillziting mechanism enel set tol yield under excessive stmin enti permife the cessation of oscillation While the motor continues torno.

Another object oi the invention is to pro .viele means whereby the are of oseillelsion on lille A.

figg lee' r'veeie of the @Millet-ione eemle'faely sopjeeel 'et the Will of the "mi While elleA ffl/uis in motion; emi in fmhefeioee of ellis; objec, the invenioe. eenil. siss oii liek connected to e winery crank (liek by means of e, disk momied. in 'lslie omni-f oisk so, es.; to be ecljusteble tewm amliiom elle Gente? of seid. crank ilieli.

t the eceoiiipenjfing drawings illilseifzitmg. elke inve, om iii` the eeveml figures oi which. likev pa 'ts are similarly flesigeatecl, Figuye e. side elevation of fain eiii'oofly- .ehe elements of this invenliomwith port o1? Elie casing breken ewey 'to siiowlie eeilleirog mechanism. Fig. 2 e. reel emi View wieli elle outer easing reioo'ved-to shew elle oscillating gearing. Fig, 3 is e View taken E., o Fig. l, and looking in the direction of elle arrow. Fig. e isa bestem. plexi View of elle rotary ei'enlf: diei: with part of the oonzoeeting link broken olif. Fie. is e sertie l. section teken on line C LU, of Fig. 4,. lf" 6 is e View simile? to Fig. e,

4l to 'Y drawn, on e. langer seele ellen the other views.

' l the fen base, having eliottom flange 23 by which it may, if desired, be fixed. idly to its suppose; but, of course, the bese, bracket, or stond may loe of my suitable eonsruction andeclepgeil o @he position in which the fan izo' be used.

3 isthe motor' body, having en outeif Cesiiigl, composed of e centre/l exterior 'poitioue end end portions or caps 5 21ml 6. iTVitliin this. easing is he motor housing, preferably composed of n oenllfel poi'tion 'l' and end; portions 8 :uid 9 secui'edogetlier by screws l),

ll' .is e port of lie motor ield., and. l2 is the armature mounted on ille armature simili 13. 'Un the outwardly projecting end le of the shaft 13 is mounted'tlze usual ffm 15 .i112 closedA in :i guard 1G.

The oscillating gewin@ is located within a com; eitment lil; i'ormed by an enlargement o fille emi poreioii 9 of the motor housing eri-hl between the armatore l2 and the reen. bezgring 18 for xhe armature shaft. This e214 largement of the eol portion 9, with its oep hereinafter meneionefl, consitutes wim7 :for

sek@ of brevity, is herein referred to the {mediating-geef box. This gearing is com -revolve on the upper lend of a spindle 25, j

and this spurgear 24 has a spur pinion 2G lo fastened to it and turning with it on said spindle. This spur pinion 2G `drives the spur gear 27 secured by set screws 28 to a shaft 29 bearing in a sleeve extension 30 oi' the cornpartinent 17. As shown, these pinionsand' l5 spur gears vary in diameter so as to reduce the speed, and they are herein referred to collcctivel as a worin-driven reducing gaan ing for e eating the oscillation oi the fan.

The compartment 17 is provided with a 2C' cap 31' containing the-armature shaft rear end bearing 18, and this cap may be suitably secured over the compartment 17 by screws 32, one ofv which is shown in Fig. 2.

At the lower end o'f the shaft 29 is mounted a crank disk 33, having a hub 34, in which is ltransversely arranged a spring' pawl 35 adapted to engage one or more notches 36 in 'the shaft 29. .The shaft 29 turns in the diroetion indicated by the arrow in'Fig. 7, and

3o it will thus be seen that the driving engagement between the shaft 29 and crank disk 33 is purely frietional, and if any strain should be placed uponthe crank disk greater than the tension o the spring pawl the frictioual engagement between shaft 29 and crank disk would allow the shaft 29 to rotate free of the crank disk, and thus 'the gearing would not be stripped nor the motor windings be burnt out.

vFor the purpose of varying the are of oscillation of the fan, the under side of' the crank disk 33 is provided with acrank carrier, here shown asa ratchetdisk 37 eccentrically mounted therein with respect to '45 shaft 29 andthe teeth 33 of this disk 37 are engaged by a spring-pressed pa'wl 39 pyrovided -with a shoulder 110 and mounted transversely in the crank disk 33. 41 is link, one end of which is connected with the ratchet disk 37 at a distance from the center ol the ratchet disk 37 equal to the distance of its center from the center of the shaft 29,' and the other end of said link is connected with the base l, as by screw stud 12. For purposes or" adjustment the'wrist-pin or screw stud 43 which connects the link 41 with the ratchet disk 37 has a projecting knurled head which may be readily grasped by the ingers of the operator when he desires to .90 change the are ol oscillation. By arranging the pivotal point oi the link 4l as above described, it is evident that that point may be placed directly under the center of the shaft 29 and iu that way cause the oscillations to 55 ce: ze, although the gearing is still running It is also evident that by adjusting the ratchet disk 87 the are of oscillation may be varied from zero to the full crank throw, in which latter position the ratchet disk is shown in the drawings.

The base 1 may be provided with a swivel-- ing connection 44 for the motor body, so that the fan may be set at any desired angle with relation to its base, and the current of air from the fan thereby directed at any angle, up or down, withina certain arc.

The central section i of the outer casing has iixedly secured to its under side by rivets 45 a spindle i6 which eXtends'into the socket piece 47, and this spindle has a shoulder 48 which rests upon and turns on a ball-thrust or other suitable bearing 49.

By using the gearing above described and inclosing it within the motor casing, an oscillating electric fan is produced which is neat in appearance, and free from the unsightly casing protuberances used to contain the os cillating mechanism ,in fans of this type now on the marke The are of oscillation may he adjusted from zero to the full crank throw while the fan is running7 and this adjustment will be permanent because the ratchet disk 37 can be moved in only one direction: Further`- more the pawl will abut against the shoulder of the notch 36 when the adjustment of the ratchet disk is beingrnade, thus preventing relative movement between the parts at that point.

lt is not necessary that tools be used for adjusting the are of oscillation or arresting oscillation since both operations, by adjusting the ratchet wheel, may be eliected h hand acting upon the knurled head on the screw stud 43.

lt is to be understood that the invention 'is not limited tothe particular details of construction shown inthe drawings, for various changes may be made in the construction without departing from the scope of the invention.

1. ln an electric fan of the oscillatingT type, the combination of a motor having an armature and an armature shaft, a motor casing, a motor housing iuclosed within the casing, said housing having au end portion provided with a, box-like enlargement located between the armature and the rear arnmture shaft, a normally disposed rotaryshaft extending outside ofthe compartment and casing and operatively connected with the gearing in the compartment, a crankdisk applied to said outside shaft, and means to convert therotary motion et' the outside shaft into an oscillating motion of the fan.

2. ln an electric fan ot' the oscillating casing, a motor housing noofl with jpe9 the combination of a motor 5m famaturo and im Mmmm@ shaffc, o moto? casing, moto? hoosng; ncosed Within tha easingq said housing having an ond poto provided with box-Eko vallargamont lo bewfeen the armature and the rem bearing for its shaft and omng com @mW/ment, oscatxixg gearing' arm" mithin said c mparment and, goaef 25o the simf@ a cap :fitted hgh oompm'men to oereby conceal hve @closed d g, fwotzgy shaft dvon by sai gef-n mg and endulg ouwbsdo oi? he comparamont and casing and provided Wh o. @9.321%- disk at its outer and, and means applied foo disk io comfort rotary moiion, imo :m oscillating motion of me ffm.

8. En an eeotrio 'fan of h@ oa'catngg typo, the combination of ou moor am armature indian armaturo shaft? o moo' disk and im; operating mechanism md belge, a oay crank sk, and Camiel.' oocontmcay mol im 'and no Winch the m. i 

